He’s chosen to use Lilypad components which are Arduino bits meant to be sewn into textiles. We’ve seen a Morse Code keyer using these components and this project is along the same lines.

The power supply is only 5V, which means the LilyPad will be 3.6V. A voltage of 3.3V will cause the Arduino to reset. If your resistance is too high, you’ll have to add more thread.

SparkFun currently offers more than 1,800 products, ranging from simple components, like capacitors and resistors to GPS units and Bluetooth modules. The company employs 120 people and is based in ...

There are a ton of different types of Arduino boards, and figuring out which one you want isn't always an easy process. Over on Tested, they break down the main differences between the most common ...